Cellular Respiration - Iowa State University

Cellular Respiration
Unit 2
Supplemental Instruction
Iowa State University
Bio 212
Essner Becraft
Cellular Respiration-
Substrate-level phosphorylation-
Oxidative phosphorylation-
2.What is the equation for cellular respiration?
3. True or False. Glycolysis is nearly identical in all living species
4. What are the 3 phases of glycolysis?
5. Why is the citric acid cycle considered a cycle. Also list the inputs and outputs of the cycle
6. Explain oxidative phosphorylation and why 90% of our ATP is generated this way. Also what
is the proton-motive force? Where is it and how is it generated?
Supplemental Instruction
1060 Hixson-Lied Student Success Center  294-6624  www.si.iastate.edu
What is the role of oxygen in cellular respiration?
a. It is reduced in glycolysis as glucose is oxidized
b. It provides electrons to the electron transport chain
c. It is the final electron acceptor for the electron transport
d. It provides the activation energy needed for oxidation to occur
e. It combines with carbon removed during the citric acid cycle to form CO2
When glucose is oxidized to CO2 and H2O, approximately 40% of its energy is transferred to
a. Heat
b. ATP
c. Acetyl CoA
d. Water
e. The citric acid cycle
Which of the following reactions is INCORRECTLY paired with its location?
a. ATP synthesis inner membrane of the mitochondria, matrix and cytosol
b. Fermentation Cell cytosol
c. Glycolysis Cell cytosol
d. Substrate-level phosphorylation Cytosol and mitochondrial matrix
e. Citric acid cycle Cristae of mitochondria